| Attenuation of coda waves and Q_c value beneath the Chengdu telemetered seismic network |
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| 引用本文： | 曾健,陈天长,韩渭宾,范军,郑斯华,长谷川昭,堀内茂木,松本聪. Attenuation of coda waves and Q_c value beneath the Chengdu telemetered seismic network[J]. 地震学报(英文版), 1997, 0(3) |
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| 作者姓名： | 曾健 陈天长 韩渭宾 范军 郑斯华 长谷川昭 堀内茂木 松本聪 |
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| 摘 要： | ＡｔｅｎｕａｔｉｏｎｏｆｃｏｄａｗａｖｅｓａｎｄＱｃｖａｌｕｅｂｅｎｅａｔｈｔｈｅＣｈｅｎｇｄｕｔｅｌｅｍｅｔｅｒｅｄｓｅｉｓｍｉｃｎｅｔｗｏｒｋＪＩＡＮＺＥＮＧ１）（曾健）ＴＩＡＮＣＨＡＮＧＣＨＥＮ１）（陈天长）ＷＥＩＢＩＮＨＡＮ１）（韩渭宾...
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Attenuation of coda waves and Q c value beneath the Chengdu telemetered seismic network |
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| JIAN ZENG ) T IAN C HANG CHEN ) W EI B IN HAN ) J UN FAN ) SI H UA ZHENG ) A KIRA HASEGAWA ) S HIGEKI HORIUCHIJ ) S ATOSHI MATSUMOTO ) ) Seismological Bure. Attenuation of coda waves and Q c value beneath the Chengdu telemetered seismic network[J]. Acta Seismologica Sinica(English Edition), 1997, 0(3) |
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| Authors: | JIAN ZENG ) T IAN C HANG CHEN ) W EI B IN HAN ) J UN FAN ) SI H UA ZHENG ) A KIRA HASEGAWA ) S HIGEKI HORIUCHIJ ) S ATOSHI MATSUMOTO ) ) Seismological Bure |
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| Affiliation: | JIAN ZENG 1) T IAN C HANG CHEN 1) W EI B IN HAN 1) J UN FAN 1) SI H UA ZHENG 2) A KIRA HASEGAWA 3) S HIGEKI HORIUCHIJ 3) S ATOSHI MATSUMOTO 3) 1) Seismological Bure |
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| Abstract: | Based on the single scattering model of coda power spectrum analysis, digital waveform data of 50 events recorded by the real time processing system of the Chengdu telemetry network are analyzed to estimate the Q c values of earth medium beneath the Chengdu telemetry network for several specified frequencies. It is found that the Q c shows the frequency dependency in the form of Q c= Q 0 f n in the range of 1.0 to 20.0Hz. Estimated Q 0 ranges from 60.83 to 178.05, and n is found to be 0.713 to 1.159. The average value of Q 0 and n are 117 and 0.978 respectively. This result indicates the strong frequency dependency of the attenuation of coda waves beneath the Chengdu telemetry network. Comparing with the results obtained in other regions of the world, it is found that Q 0 1 value and its change with frequency are similar to those in regions with strong tectonic activity. |
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| Keywords: | Chengdu telemetered network coda Q frequency dependency tectonic activity |
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